Remove timing limitation to set Broadcast, ReceiveBuffer, and SendBuffer options from UDPSocket.

net/udp/udp_server_socket.cc

Index: net/udp/udp_server_socket.cc
diff --git a/net/udp/udp_server_socket.cc b/net/udp/udp_server_socket.cc
index 796c04da503bcda479c1822d68ce9e53173ee617..bc00333678d328c210b9d61268eeae5843d87106 100644
--- a/net/udp/udp_server_socket.cc
+++ b/net/udp/udp_server_socket.cc
@@ -65,8 +65,8 @@ void UDPServerSocket::AllowAddressReuse() {
   socket_.AllowAddressReuse();
 }
 
-void UDPServerSocket::AllowBroadcast() {
-  socket_.AllowBroadcast();
+int UDPServerSocket::SetBroadcast(bool broadcast) {
+  return socket_.SetBroadcast(broadcast);
 }
 
 int UDPServerSocket::JoinGroup(const IPAddressNumber& group_address) const {